A simply supported beam has a concentrated load at midspan. If the beam properties are given below, what is the final stress at bottom of the beam section where the maximum moment is located and the total losses of the prestressing force is 21% (MPa) Properties: Beam width = 289 mm Beam height = 498 mm Concentrated load = 22.79 kN Span of the beam = 9 m Prestressing force = 385 kN eccentricity = 123 mm

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Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.